Tank-sealing means



March 6, 1928.

C. F. BERTSCHINGER TANK SEALING MEANS I Filed Sept. 29. 1926 INVENTOR A T TOR/V5 Patented Mar. 6, 1928.

PATENT o l-"r ce.

CHARLES FREDERICK BERTSCHINGER, or JAMAICA, NEW YORK, ASSIGNOR or imam;-

roumns TO TIDE WATER on. COMPANY, or BAYONNE, NEW JERSEY, A con- PORA'IION OF NEWJERSEY.

TANK-SEALING MEANS.

The invention is an improvement in means tor sealing tanks,particularly under round gasoline storage tanks, against fradulent filling. and for enabling their contents to be gauged. and is more particularly an imprm'eiuent in the device disclosed in my prior 1 1am N0. 1,604.874, dated October 36, 1926. I The object of the present invention is to provide a construction possessing special advantage by reason of its co1npactncss and flatness. adapting it for shallow curb boxes. chambers or recesses at the ground level. and also to provide a constructiOnhVQll adapted for economical manufacture, easyv to seal, and completely safeguarded against entrance-of water into the tank. i j

In the accompanying drawings forming part hereof: 2O

Fig. 1 is an elevation of the upper portion of the pipe which extends upward through the ground from the tank. with the improved construction applied to the upper end of the pipe, the pipe beingbroken away, most of the length of the measuring rod between its ends being broken away, and a portion of. the tank being indicated 'insection with the lower end of the measuring rod re ing on the bottom; and

Fig. 2 is a vertical sectional view, showing the rod in elevation.

The pipe 3 rises from an underground tank 2, and may serve for both filling and gauging ,A fitting 4 in the nature of a collar having an internal screw thread is screwed onto the upper end of the ipe, andis, secured thereto in a permanent or semi-permanent manner. preferably by a pair of set screws 7 connected bya wire and lead seal 8.. A removable bushing 10, which is screwed into the fitting. is providedwith an aperture 12 which is substantially occupied by a freely raisable gauge rod 6, which extends down through the pipe to the bottom of the tank; The rod has a projecting cross-pin 13 at its lower end, sealed by a seal 14. to prevent the rod from being withdrawn from the opening when the rodis lifted. A

pipe, together with the provision at the lower end of the rod. insure that the rod can not become separated from the bushing when the bushing is unscrewed from the fitting.

' a seal 20 passed throughit.

similar erosse pin and seal 15. 16 at the upper endof th Instead (if these, particular provisions, the

rod might be made with a permanent enlargemcnt" or shoulder at one or both ends.

A closure plug 5 prevents entrance of water through the opening 12 and affords access to the upper end oi. the rod 6, for

gauging. I

My prior application exhibits similar parts and combinations, but the present construction is decidedlylmore compact and "more desirable by reason of the special tea-- tures which willbe described.

Thefitt-ing 4 is made with a laterally proflange is formed with one or more openings 28 designed to have the :wire or tape of is a cup-like member, having the aperture 12 in its bottom,and its side wall screwthreaded both outside and inside, the screw plug 5 screwing into the internal thread of this bushing. The top of the bushing has alaterally projecting flange 26 which overlies and cooperates with the flange 25, and is also provided with one or more openings 28,'so that the bushing is sealed against unauthorized removal by. passing the wire or tape ofthe seal through the two flanges. The flanges also serve to produce a liquidtiglit joint at this point by against an interposed gasket 27. Another packing 27 is also placed between the'flange 2,6 and a flange 29 of the closure plug.

jecting flange 25 at its upper end, and this.

The bushing 10 pressing together The bushing 10 and the closure 5 form be prising a fitting applicable to.an entrance-m pf a tank, a removable bushing in said fitting provided.with an aperture, a gauge rod occupying said aperture andliftabe therethrough but prevented from removal therefrom. means whereby said bushing is sealed against unauthorized removal, and a closure plug which is screwed into 'said bushing.

2. Means of the characterdescribed comprising a fitting applicable to an entrance of a tank, a removable cup-like bushing in said fittin'g'having aux-aperture in its bottom andan internal screw-thread on its side wall, a gauge rod occupying said aperture and liftable therethrough but prevented from removal therefrom, means whereby a said bu shin is sealed against unauthorized removal, an a closure plug which is screwed into the internal thread of said bushing.

3. Means of the character described comprising a fitting applicable to an entrance of a tank, a removable bushing in said fitting provided with an aperture, :1 gauge rod occupying said aperture and liftable therethrough but prevented from removal therefrom, and flanges on said fitting and bushing providing means for the passage of a sealing element.

4. Means of the character described comprising a fitting applicable to an entrance of a tank, a removable bushing in said fitting provided with an aperture, a auge rod occupying said aperture and li table therethrough but prevented from removal therefrom, flanges on said fitting and bushing providing means for the passage of a sealing element, and a closure applied to said bushing.

5. Means of the character described comprising a fitting applicable to an entrance of a tank, a removable bushing screwed into said fitting and provided with an aperture, agauge rod occupying said aperture and lif table therethrough but prevented from removal therefrom, and flanges on said fitting and bushing providing means for the passage of a sealing element,said flanges also'cooperating in a liquid-tight joint.

Means of the character described comprising a fitting applicable to an entrance of a tank, a removable bushing screwed into said fitting and provided with an aperture, :1 gauge rod oceupyin said aperture and hftable therethrough iiut prevented from removal therefrom, flanges on said fitting and bushing providing means for the passage of a sealing element, and a closure plug screwed into said bushing and provided with a flange, packing means interposed between the fitting and bushing and another packing means interposed between the bushing and the flange of the closure plug.

7. Means of the character described comprising a fitting applicable to an entrance of a tank, a removable bushing screwed into said fitting and provided with an aperture, :1 gauge rod occupying said aperture and liftable therethrough but prevented from removal therefrom, means whereby said bushing is sealed against unauthorized rcnioval, and a closure plug which is screwed into said bushing, said bushing and closure plug forming a chamber between them for the upper end of said rod.

8. Means of the character described comprising a removable fitting secured to the upper end of the pipe of an underground tank. a removable intermediate member applied to said fitting, means enabling said member to besealed to said fitting against unauthorized removal, said member having an aperture, a gauge rod occupying said aperture and prevented from removal therefrom, and a closure which is applied to said intermediate member.

9. Means of the character described comprising a fitting applicable to the entrance of a tank, a removable bushing in said fitting provided with a gauging aperture, said fitting and bushing having external portions providing means for the passage of a connecting sealing element, and a closure engaged with said bushing.

10; Means of the character described coinprising a fitting applicable to the entrance of a tank, a bushing adapted to be screwed into and out of said fitting and provided with a gauging aperture, said fitting and bushing having external portions providing means for the passage of a connecting sealing element, and a closure adapted to be screwed into and out of the bushing, and packing means adapted to be compressed between the fitting and the bushing and between the bushing and the closure.

CHARLES FREDERICK BERTSCHINGER. 

